/Engine/Source/Runtime/Core/Public/Containers/ArrayView.h
Checks if a slice range [Index, Index+InNum) is in array range. Length is 0 is allowed on empty arrays;Indexmust be 0 in that case.
void SliceRangeCheck ( [SizeType](API\Runtime\Core\Containers\TArrayView\SizeType) Index, [SizeType](API\Runtime\Core\Containers\TArrayView\SizeType) InNum ) const